There is some advantage to managing phone settings through a desktop interface. Since Android is “cross platform” I imagine a web extension of the Android market plus a web based interface for managing device configuration and synchronization would be the best solution to this issue.
Update: doubleTwist is a cross platform app for getting your content onto any device. It plays nicely with Android and recently added Android Market integration (Mac only ATM). The experience is very close to iTunes quality. It even ships (crippled) with some T-Mobile devices.